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236w ago - A few days back we reported on the PS JailBreak Downgrade file leak, and today Hansi of PSXCare.com (linked above) has followed up on some previous work and shared a video of a PS3 downgrading with PS Downgrade and a Beagle 480 USB protocol analyzer.

Download: Test Boot PS3Key.tdc / Service Mode by PSDowngrade.tdc

To quote: PSDowngrade / PS3 JIG USB traffic protocol scan

Use Beagle Data Center Software to read the dumps.

http://www.totalphase.com/support/product/beagle_usb480/

One file is a PS3Key boot, the other is a PSDowngrade boot.

The PSDowngrade is supposed to be encrypted and not "analyzeable" according to a distributor. But maybe something can be learned anyway.

Have fun!



Video: PS3 Downgrading via PSDowngrade with Beagle 480 USB

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#8 - CJPC - 236w ago
CJPC's Avatar
Quote Originally Posted by ninjaihawk View Post
The service mode file is encrypted? Though you can never tell what a file is by it's extension, it appears that this extension is for "Microsoft Tabular Data Control". If you view it with a hex editor you notice the header of TPDC, so not sure what that is.


If you re-read the post, it says:

Use Beagle Data Center Software to read the dumps.

http://www.totalphase.com/support/product/beagle_usb480/

Perhaps give that software a try to peek into it more!

#7 - ninjaihawk - 236w ago
ninjaihawk's Avatar
The service mode file is encrypted? Though you can never tell what a file is by it's extension, it appears that this extension is for "Microsoft Tabular Data Control". If you view it with a hex editor you notice the header of TPDC, so not sure what that is.

#6 - rijk - 236w ago
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well it shows some $1200 equipment which i doubt many ppl get for downgrading purpose only... lol nifty device though obviously.

#5 - heartagram62 - 236w ago
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That video shows very little of any hard downgrade information.

#4 - snoekie - 236w ago
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Since it's a challenge response, it's more useful to monitor the data sent to the PSJailbreak when installing the downgrader.

That's the hex file we need to reverse engineer. Once you have that, the data during downgrading doesn't matter anymore.

#3 - oVERSoLDiER - 236w ago
oVERSoLDiER's Avatar
Wow, it's real that we can downgrade. What a cool news, thank you !

#2 - HellReborn - 236w ago
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i can assure you that the file has already been looked at to see just what has done to make it like how it is.

#1 - GotNoUsername - 236w ago
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Can't the newly found way to decypt pup's used to do so ? SO that we can have a look into the file.